Discusses views of Daniel Sharpe on foliation and cleavage. Recalls his own previous discussion [in South America].

Has found a house on Baker Street to take for a month.

Mentions Daniel Sharpe’s study of the Grampians.

Association of various metamorphic rocks and relationship of their foliation to their dip and strike. Discusses foliation of schists and its origin. Comments on fluidity of gneiss and schists.

Relationship of schists to alternating beds of slate in western Tierra del Fuego and the Chonos Islands.

Comments on Sharpe’s theory of curved cleavage planes.

Example of metamorphosis in a "clay-slate porphyry region". Importance of previous lines of cleavage and stratification in foliation of metamorphosed rock.

No summary available.

Can AH give information about D. A. Godron, "De l’espèce et des races" [Mem. Soc. Sci. Lett. & Arts Nancy (1847): 182, 239–88]? CD unable to locate reference.

Thanks AH for seeking reference. If AH cannot find Godron [see 1648] it is hopeless. Thanks for reference to C. F. Hornschuch.

Mentions his paper ["Transportal of erratic boulders", Collected papers 1: 218–27]. Discusses ice-borne rock. Reference to unpublished paper on icebergs [?"Power of icebergs to make grooves", Collected papers 1: 252–5]. Remarks on scoring by icebergs. Comments on judgment of theories by Geological Society.

No summary available.

No summary available.

CD has more specimens of Helix pomatia.

Thanks for Lepidoptera book.

Invites JL to dinner.

Mentions RH’s book on light [Researches on light in its chemical relations, 2d ed. (1854)]. Asks about coloured glass used in experiments on plants.

Unable to give information on Mrs Shaw of Crayford.

Mentions TCE’s interest in dog- and pig-skeleton researches.

Interested in seeing the Eyton Museum.

Reminisces about entomology [at Cambridge].

Comments on two pamphlets by John Bachman [probably Continuation of the review of "Nott and Gliddon’s types of mankind" (1855) and An examination of the characteristics of genera and species as applicable to the doctrine of the unity of the human race (1855)].

CD’s pigeon breeding and plant hybridization experiments.

Invites CL to visit.

Now has several pigeons, and intends to get pigeons from all parts of the world.

Glad TCE is working at dogs. Would TCE like head of Chinese dog?

Vexed he cannot find head of [Chinese] dog.

First took up skeletonising to see how much young pigeons and poultry differed from the old.

Wishes to ascertain differences in skeletons of pigeons, poultry, covey birds, and rabbits. William Yarrell has shown CD breastbones. W. B. Tegetmeier has shown him skulls of fowls.

Mentions seeing GHKT at BAAS meeting at Oxford [1847].

Reports he is working on variation of species. Asks about varieties of pigeons and other poultry, and asks for specimens from Ceylon.